From 0b4dcea579a1b6f4d249d61f5bc8adeaa7c895d8 Mon Sep 17 00:00:00 2001 From: Chris Mason Date: Thu, 11 Jun 2009 11:13:35 -0400 Subject: [PATCH] Btrfs: fix oops when btrfs_inherit_iflags called with a NULL dir This happens during subvol creation. Signed-off-by: Chris Mason --- fs/btrfs/ioctl.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index 926332a73cd..eff18f5b536 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -112,7 +112,12 @@ void btrfs_update_iflags(struct inode *inode) */ void btrfs_inherit_iflags(struct inode *inode, struct inode *dir) { - unsigned int flags = BTRFS_I(dir)->flags; + unsigned int flags; + + if (!dir) + return; + + flags = BTRFS_I(dir)->flags; if (S_ISREG(inode->i_mode)) flags &= ~BTRFS_INODE_DIRSYNC; -- 2.20.1